Questions tagged [ethernet]

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What are possible attacks if am connecting to public WiFi using repeater, through Ethernet or /and if the router's firmware is hacked

What are possible attacks if am connecting to public WiFi using repeater, through Ethernet or /and if the router's firmware is hacked, supposing am running a Debian system ,blocking inbound ...
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Ethernet wiretapping attack

I have some questions about the Ethernet wiretapping attack. I have already created a small lab using a cat5e (downgraded to 100mbit), a cat7 and this as a keystone: link. The lab looks like this: ...
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Can devices in a WAN view/connect to devices in a LAN?

I live in an apartment building that provides cable internet via an ethernet cable that reaches my place. I connect this cable to my WAN port and distribute it internally via wifi through my password-...
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Intel Ethernet Driver Advanced Settings for Security/Privacy

There are some settings found on Device Manager > Ethernet Driver > Advanced Tab. Are there suggestions for any of these settings? or any suggestion to improve ethernet driver security? Adaptive ...
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HDMI with Ethernet: Network Security Risk?

I recently found out that HDMI cables (v1.4 and over) have ethernet capabilities for higher res output, so I want to know one thing: Say I have a PC/laptop connected to the internet, and a monitor (...
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Would it be possible to create an external mac address spoofer?

I was wondering if it would be possible to create some sort of ethernet passthrough device, but this device also functions as a layer 2 mac address spoofer, which can be used with any device without ...
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Suricata and rules based on MAC address

I'm working on a project to implement SDN in a network. One of my flows is redirecting to the Suricata IDS and the flow works in layer 2 with MAC address. Since I've read that Snort only works in ...
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Using a WLAN router to create an access point

Would the local network administrator in my dorm be able to figure out that I'm using a WLAN router to access their wired internet connection? Assuming I'm not broadcasting the SSID.
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What credentials does this hardware device steal?

I was reading about this device the author made, however he did not specify WHAT he was able to steal from a locked computer. What credentials does this steal? https://room362.com/post/2016/snagging-...
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How to perform a security test/review/penetration testing of Ethernet ports?

I have been engaged by a client who wants its Ethernet ports checked to determine whether port security is functioning effectively. What can be the approach or steps to do check Ethernet port ...
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How to check if a Wi-Fi network is safe to connect to?

I always feel scared to connect to hotel, airport Wi-Fi etc. I feel that if the Wi-Fi router is hacked, my personal information can be collected by a hacker. How can I determine if a Wi-Fi network is ...
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Are Routers Liken to a Firewall? [closed]

When my ISP came to set up my fiber internet, I told the technician I didn't want a router included within my wired network. He successfully managed setting up the ONT(Optical Network Terminal) ...
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Video card - pci express security

I recently bought a second hand Nvidia video card which runs in SLI mode with my default video card. Can it be infected with a malicious program added by the previous owner, steal data from the ...
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Modifying the Ethernet/Wifi driver to get faster Network access? [closed]

I've already asked this question on networkengineering.stackexchange.com, but unfortunately it was marked as Offtopic there. As far as im concerned the CSMA/CD and the CSMA/CA standard rely on the ...
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Encryption for home ethernet?

I recently had my home wired for gigabit ethernet, which is awesome, but left me with a short ethernet run that is actually outside the walls of my house. How can I secure this link against someone ...
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675 views

cross-over cable vs router for network with 2 computers?

I want to connect 2 Windows home computers together for a server/client relationship; however, only the "client" computer should be connected to the internet. "Server Computer" <----> "Client ...
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Security onion only Seeing broadcast traffic and its own traffic

I am attempting to test my new security onion install. I have it set up on a static IP Ethernet adapter in a virtual machine with an IP of 10.0.3.47 When I go launch Sguill, it seems to work well ...
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Establishing a physically enforced unidirectional Ethernet link with 1000BASE-X, fiber optic PHY

I have a use case where I am attempting to establish a unidirectional Ethernet link where a singular fiber is used to transmit data to the receiver. The Rx of the transmit side and the Tx of the ...
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Could an attacker grab my wifi password from ethernet?

If an attacker plugged a standard outlet-to-ethernet adapter into an outlet inside my house, and then plugged in an ethernet-to-usb adapter into a raspberry pi, would the raspberry pi connect to the ...
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What is "Client Isolation" called on wired networks?

Wireless AP's commonly support a "Client Isolation" option to prevent wireless clients from communicating with each other. Is this feature commonly supported on wired ethernet switches to prevent ...
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Is a wired public network more secure than a wireless public network? [duplicate]

I use wireless and wired networks at my university (which do connect to the Internet), both of which I connect to using my own computer. To access the Internet from these networks, students and staff ...
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Is plugging my computer directly into a college network a security risk?

I've been living in a dorm for the last week. When I arrived I basically set up my laptop and plugged in the ethernet cable directly into the socket in the wall (without a router in between). During ...
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2 votes
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Can someone find wpa2 key through ethernet?

When you connect to a ap using ethernet it requires no authentication but the traffic must be encrypted with a handshake shouldn't it? So wouldn't an attacker be able to write a script when he plugs ...
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Router connected to my ethernet [duplicate]

I'm guessing that someone is bringing his router to provide wifi to his coworkers, by connecting it to a certain point on one of the 8 floors of my building, how can I know where is connected?
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33 votes
3 answers
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Can malware be transmitted via a USB charger plugged into a wall socket?

I have a smart phone that I often plug into a wall socket for charging via a small adapter that rectifies the AC to DC power and transforms the voltage from line (120V or 240V) to 5 V DC, probably ...
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Spoof another IP address in the same network,will the spoofing source get the response?

I have read some articles about IP spoofing. Briefly speaking, IP-spoofing means the attacker uses a fake IP address in the IP header, to pretend this IP packet is sent by another machine. The ...
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3 answers
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Ethernet over power: security aspects

Our company is moving to another facility which has no LAN cabling, therefore we are considering using ethernet over power. We would like to avoid our data being transmitted out of this facility and ...
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7 answers
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Preventing Ethernet over power

I'm an electrician doing a job at a secure site. The client is concerned that someone could plug an Ethernet over power (EOP) connection into the switch and then connect elsewhere in the building. Is ...
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How can I tell if my ethernet connection is being sniffed? [duplicate]

I read in another post that wired traffic is not protected: The only real additional threat that a malicious network administrator would pose, is that they have access to the wired side of the ...
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How to ensure security between devices from different manufacturers over multicast

I'm involved in the design of a protocol that allows different manufacturers to share data amongst their products. The protocol uses multicast over Ethernet so any device can join. Note that it's very ...
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3 votes
1 answer
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Security criteria for selecting a network switch?

I am looking to purchase a switch with 24+ ports. The set of security criteria that I should bear in mind when selecting a switch is not clear to me. I have tried to take other networking security ...
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3 answers
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Can an attacker sniff physical network traffic through WiFi?

So, I am wondering - is it possible for an attacker to sniff traffic on an Ethernet connection if they are not physically plugged into the modem/router hardware but they are connected through wifi? In ...
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2 votes
2 answers
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Is bugged CPU mean "gameover" for whole Computer? [closed]

I'm looking for answer on such question. Imagine that CPU bugged on the factory simply like Blue Pill, but for the network's interconnections. How exactly firewall of OS could protect station ...
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2 votes
4 answers
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Can anyone tell if a wireless router is plugged into an Ethernet port (without actually seeing it)

In a large network if there is an Ethernet port in the wall, is it possible to tell if a switch or wireless adapter is plugged into it? (I'm talking about the cheap home routers - with the built in ...
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8 votes
2 answers
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How to track down a rogue laptop connected to an un protected ethernet socket in a big organization?

I would like to know ways of detecting rogue laptops connected to Ethernet sockets not properly secured in a big organization that has a plain network segment. I know that this can be prevented using ...
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How do I find a target on the wired network, from an attack system on Wi-Fi?

I'm trying to practice penetration testing on my home network. The target system is my desktop computer, which is connected to the network via ethernet cable. The attack system is my laptop, which is ...
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4 votes
2 answers
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Ethernet security

I have a simple question that many people probably have and yet there does not seem to be a topic on this. I am visiting a company for a meeting and I have my laptop with me. This company is our ...
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MACSEC nonce/key uniqueness

802.1ae requires a nonce to be sent with each Ethernet frame in the MACSEC tag. The 96 bit nonce is formed by concatenating a 64 bit fixed field (based on MAC source address and port number) with a ...
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How to Transfer packets from one ethernet card to another [closed]

I have a desktop with two ethernet(etho,eth1) cards and OSSIM installed in it. I have a laptop with webmin installed, where i want to write rules for transferring packets from eth1 to eth0. Both the ...
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